Singh, GVerma, H C1971-06-012009-05-311971-06-012009-05-311971-06-01Singh G, Verma HC. Drug treatment of chronic intractable pain in patients referred to a psychiatry clinic. Journal of the Indian Medical Association. 1971 Jun; 56(11): 341-5http://imsear.searo.who.int/handle/123456789/102758engAdolescentAdultAgedAmitriptyline --therapeutic useAnxiety --drug therapyChlordiazepoxide --therapeutic useChronic DiseaseDepression --drug therapyFemaleHumansImipramine --therapeutic useMaleMiddle AgedPain --drug therapyDrug treatment of chronic intractable pain in patients referred to a psychiatry clinic.Journal Article